I'm currently using hilt in a single gradle module...

# dagger

[Colton Idle]

I'm currently using hilt in a single gradle module application. Everything works great.

Now I added a new module called featureX. featureX contains a ChatActivity and ChatViewModel. I also want to use dependency injection in this new gradle module. In my app module I added

implementation(project(":featureX"))

then to featureX build.gradle.kts I added

kotlin("kapt")
id("dagger.hilt.android.plugin")

and

implementation("com.google.dagger:hilt-android:2.35.1")
kapt("com.google.dagger:hilt-compiler:2.35.1")

If I build the app and navigate to ChatActivity. Everything works fine. As expected, I'm not introducing DI yet.

I add a new class to featureX

class Blah @Inject constructor() {
    fun getName(): String {
        return "x"
    }
}

run. Compiles. As expected.

Then I go to ChatActivity (my only activity in featureX)

@AndroidEntryPoint
class ChatActivity : AppCompatActivity() {
    @Inject lateinit var blah: Blah

compiles, but crashes at Runtime.

Caused by: java.lang.ClassCastException: com.rollertoaster.app.DaggerRollerToasterApplication_HiltComponents_SingletonC$ActivityRetainedCImpl$ActivityCImpl cannot be cast to com.rollertoaster.featureX.ChatActivity_GeneratedInjector

Ideas? It's my first time using multi modules and I'm not great at dagger/hilt and so maybe I'm making a noob mistake here.

EDIT: Clean and rebuild fixed it. 😭